Ioan Davies was a founder member of the Fitzwilliam String Quartet (1968-1986). For eighteen years he toured as a quartet cellist throughout Europe, North America, the USSR and Japan. He participated in many world premieres and worked in close contact with Shostakovich in the last years of the composer’s life. He took part in recordings on the Decca label of string quartets by Beethoven, Schubert, Sibelius Brahms, Borodin, and Shostakovich (the complete quartets). He appears on the last Shostakovich disc as a soloist with Elisabeth Soderstrom and Vladimir Ashkenazy.

Since 1986 he has enjoyed performing the Piano Trio repertoire with The Debussy Piano Trio (Switzerland) and the Bohemia Piano Trio, resident ensemble at UCNW Bangor. He gives solo recitals throughout the UK and Europe. During the past fourteen years has worked extensively with the pianist Jana Frenklova and has broadcast with her on Radio 3.